Carton feeding machine



8 Sheets-Sheet l ATTORNEYS Oct. 18, 1932. G. H. BENT CARTON FEEDINGMACHINE.

Filed Jun 28, 1927 0121.181932. G H BENT 1,883,228

CARTON FEEDING MACHINE INVENTOR ATTORNEYS Oct. 18, 1932. l G H. BENTr1,883,228

CARTON FEEDING MACHINE Filed June 28, 1927 8 Sheets-Sheet 5 SnvcntorOct. 18, 1932. G. H. BENT CARTON FEEDING MACHINE 8 sheets-sheet 4 FiledJune 28. 1927 NVD 01 INVENTOR f df. 6M

ATTORNEYS Oct; 18, 1932. G. H. BENT CARTON FEEDING MACHINE Filed June28, 1927 8 Sheets-Sheet 5 mgm@ l WON @QN Y INVENTOR ATTORNEYS Oct. 18,1932. G. H. BENT CARTON FEEDING MACHINE Filed June 28. 1927 8Sheets-Sheet 6 ZY' 'I e@ 7 fhg-- :g 236 zal INVENTOR S/:bc/ ATTORNEYSOct. 1s, 1932. G. H. BENT CARTON FEEDING MACHINE Filed June 28, 1927 qNr.6

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8 Sheets-Sheet 7 INVENTOR ATTORNEYS Oct. 18, 1932. G. H. BENT CARTONFEEDING MACHINE Filed June 28. '1927 8 Sheets-Sheet 8 J7@ 6 W r f 2 W n@l Mw 0 2 /W MIM @HM w 6M z 0 6 2 aw M f 2 6 t INVENTOR Patented Oct.'18, 1932A PATENT ol-I-lcr-L GEORGE H. BENT, F BATTLE CREEK, MICHIGANCARTON FEEDING- MACHINE Application led .Tune 28,

This invention relates to package making machines, and more particularlyto machines for feeding carton blanks or the like to said machines. 4

l6 One object of the invention is to provide mechanism that will move ablank or the like into position on a continuously moving form therefor.

Another object of the invention is to provide mechanism that operates onthe successive blanks of a stack, to open, recollapse, reopen, squareout and transfer the blanks onto forms or holders for the same.

Another object of the invention-is`to provide a blank separating andforwarding knife or the like that travels in an orbital or closed pathto separate and forward blanks from a stack of the same.

Another object of the invention is to pro-r` vide a blank separating,opening and forwarding knife that carries the carton through rollers forrecollapsing the same.

Another object of the invention is to provide a mechanism that acts,during travel of the knife in its orbital path, to rotate the knife andopen the carton.

Another object of the invention is to provide a reciprocating cartonreceiver with devices movable thereon to square out a carton in thereceiver.

Another object of the invention is to provide a carton receiver withflap spreading devices thereon for opening the flaps of the carton priorto transfer of the same onto a form..

:A further object` of the invention is to provide a carton receiver witha stripping device that transfers thepcarton from the receiver onto thecarton form.

Other objects of the invention will appear as this description thereofproceeds.

The invention as herein illustrated and described is, or may be,associated with any suitable package making machine such as disclosed,for example, in Patent No. 1,096,918, granted to H. L. Johnson, May 19,1914. It is to be expressly understood, however, that the invention isnot limited in use to the type of package making machine referred to andthat the invention may be embodied in single 1927. Serial No. 202,134.

or in tandem form with package making machines that operate at higherspeeds and have greater capacity of production than the package makingmachine disclosed in said patent and described and illustrated herein.

In order to more clearly understand this invention .reference may be hadto the accompanying drawings which illustrate one embodiment of theinventive idea and wherein Fig. 1 is a side elevation of a package mak-60 ing machine, showing blank feeding mechanism of the present inventionassociated therewith;

Fig. 2 is a side elevation of the blank feeding mechanism, looking fromthe left` of 05 Fig. 1;

Fig. 2B is a detail perspective view of the front end of the blankfeeding mechanism, with parts omitted to more clearly show the blankrecollapsing rollers;

Fig. 3 is an enlarged top plan view partly in section, of the blankfeeder and associated package making machine, with parts of both omittedfor purposes of clearer illustration;

Fig. 4 is a pulled out perspective view, 75 showing a carton pusher, andcarton blanks at successive positions occupied thereby during travel ofthe same from the feeder mechanism to the package making machine;

Fig. 5 is an enlarged detail perspective 80 view showing the cartonblank opening and forwarding knife, together with parts of the mechanismfor operating the same;

Fig. 6 is a detail perspective view of the vertical pivotal connectionfor `the knife with the reciprocating support therefor;

Fig. 7 isa detail perspective view of flap spreading and cartonstripping devices;

Fig. 8 is a diagrammatic view showing reciprocating squaring outmechanism with a 9 blank therein ready to be transferred onto the movingcarton form or blnck;

Fig. 9 is a side elevation, partlv in section, of devices for spreadingthe end flaps of the carton as the latter is being transferred from thesquaring out mechanism onto the carton form or block;

Fig. 10 is a side elevation of a carton stripper that ejects the cartonfrom the squaring out mechanism onto the form or block; 10

Fig. 11 is a detail perspective view of flap spreading lingers and aplunger for operating the same; v

Fig. 11L is a. transverse'sectional view on the line 11, 11a of Fig. 7;

Fig. 1lb is a longitudinal sectional view on the line 11b, 11b of Fig.9;

Fig. 12 is an enlarged detail perspective view of the squaring outmechanism,'showing the connections for operating said mechanism and theiiap spreading and carton stripping devices carried thereby;

Fig. 13 is a detail perspective view of a carton form or block equippedwith iiapspreading fingers and means for operating the same;

Figs. 14 and 15 are longitudinal and transverse sectional viewsrespectively, through the form or block shown in Fig. 13; and

Fig. 16 is a detail perspective view of a carton form or block equippedwith pneumatic flap spreading means.

Referring to the drawings, wherein like reference characters designatelike parts throughout the several views, the principal instrumentalitiesthere shown are comprised by a package making machine, stack feeder,blank engaging knife and recollapsing rollers, carton blank pushing andregistering means, carton squaring out mechanism, and

Viiap spreading and carton stripping devices,

which will be described in the order named. Package ina/fin g machineFigs. 1, .Q and 3 This machine is provided at each side thereof withupper and lower frames 5 and 6 respectively that are connected togetherby transverse tie members 7, 7 and 8, 8 and supported on legs 9, 9bolted or otherwise suit ably secured to the machine room foundation 10.The package making machine is driven from any suitable source of power,such as an electric motor 11, which is bolted or fastened in any desiredmanner to the machine foundation 10. The armature shaft 12 of this motorcarries a pull-ey 13 around which passes a belt 14 that also passesaround a pulley 15 fixed on a shaft 16 that is journaled in suitablebearings on the machine framework at the Abottom thereof. The shaft 16has fixed thereon a pulley 17 around which passes a belt 18 that alsopasses around a pullev 19 fixed on a shaft 20 journaled in suitablebearings on the machine frame work at the upper part thereof. Fix-ed onthe shaft 20 is a pulley 21 around which passes a belt 22 that alsopasses around a pulley 23 keyed or otherwise rigidly secured on a shaft24 journaled iu suitable bearings on the framework at one end thereof.

The shaft 24 extends transversely of the machine between upper-and lowerraceways 25 and 2G respectively that'are boltedor otherwise suitablysecured to the tie members 7,

' 7 and project outwardly beyond the machine from the end thereofopposite that carrying the shaft 24. Fixed on the shaft 24 aresprockets, one of which is indicated at 27 (Fig. 1). Passing around saidsprockets are chains 28, 28 that also pass around sprockets 29, 29 fixedon a shaft 30 journaled in suitable bearings on the projecting ends ofthe raceways 25, 26 (Fig. 2). Fixed on the chains 28, 28 at suitableintervals alon'g the same are plates 31, 31 to which are attached cartonforms or blocks 33, 33 and carriers 32, 32 disposed in alternaterelation along the conveyor comprised by the chains 28, 28 and movingcontinuously therewith during like motion imparted to said chains by thedriving connections therefor with the motor 11 or other source of power.In the designed use of this machine, the carton forms or blocks 33,serve to carry empty cartons past sealing devices such as disclosed inPatent No. 1,096,918, which devices seal the bottom fiaps of the emptycartons. The carriers 32, 32 serve to carry filled cartons past saidflap sealing devices to seal the top flaps of the packages.

Stack feeder, Figs. 1, 2, 2a, .5 and l2 The stack feeder hereindisclosed is mounted on a suitable support comprised by side frames 34and 35 connected together by transverse tie members 36, 36 and providedwith legs. 37, 37 bolted or otherwise suitably secured to the machinefoundation 10. The stack feeder may be driven from any suitable sourceof power, but as herein shown, is preferably driven from the packagemakin@ machine by the following instrumentalities. Fixed on the shaft isa sprocket 38 around which passes a chain 39 that also passes around asprocket 40 fixed on one extremity of a caml shaft 41 extendinglongitudinally of the feeder framework. This shaft 41 is j ournaled insuitable bearings 42, 42 carried by a pair of the tie members 36, 36that connect the side frames 34 and 35 of the feeder together. Fixed onthe shaft 41 is a cam 43 that engages a roller 44 journaled on a fork 45straddling the shaft 41 and carried on the lower end of a rod 46 that ismoved upwardly bythe cam during rotation thereof with the shaft 41. Theupper end of the rod 46 is pivotally connected at 47 with an arm 48which is loosely mounted on a shaft 49 and turns in a counterclockwis'edirection thereon on upward movement of the rod 46. The arm 48 carries apawl 50 which, during said counterclockwise turning movement of the arm48, rides idly over the teeth of a ratchet wheel 51 that is keyed orotherwise rigidly secured to the shaft 49 and with the latter isnormally retained against movement in one direction by a pawl 51a (Fig.3). The pawl 51a is pivoted on a rod 51hadjustably retained, as by a setscrew 51, in a bracket- 51d bolted or otherwise rigidly secured on theside frame l 34 of the feeder.

Pivoted at 52 on the free end of the arm 48 is arod 53 carrying one ormore .weights 54, 54 which, after each raising movementof the rod 46,tend to turnthe arm 48 in a clockwise direction and. engage the pawlwith one of the teeth of the ratchet wheel 51 to thereby partiallyrotate said wheel in the same direction. Fixed on the shaft-49 aresprocket wheels 55, 55 around .which pass chains. 56, 56 that also passaround sprocket wheels 57, 57 fixed on a shaft 58. 4Shafts 49 and 58 arej ournaled in suitable bearings on the tops ofthe frames 34 and 35 andthesprocket wheels carried by. said shafts are preferably adjustablealong the same -to vary the distance between the chains -56,` 56 asdesired. The upper reaches of the chains 56, 56 are preferably supportedon guides 56,56 secured by brackets to the side frames 34and 35. Saidupper reaches of the chains 56, 56B support a stack of collapsed cartonblanks 59 and forward the same to a platform 60 where4 the collapsedcarton blanks are fed in succession olf the 'front of the stack by aknife to be hereinafter described. In the forwarding movement of thestack of collapsed blanks on the chains 56, 56, said blanks are guidedand retained against displacement from the vchains,'by guide rails 61,61 that are `adjustable toward and away from each other to accommodatecarton blanks of varlous slzes.v

wheels. The chains 56, 56 preferably carryon the upper reaches thereof,a follower 66 which engages the rear of the stack of blanks and, duringmovementof said chains, presses the front of the stack against stopmembers 67 67 that engage over the edges of the foremost blank of thestack. The stop members 67, 67 are yieldably mounted, as hereinafterdescribed, to provide for removal of th blanks from the front of thestack. 1 When the stack is maintained-with sufficient pressure againstthe stops 67 67 ,movement of the chains 56, 56 is stopped andthe arm 48'has only a slight turning movementdownwardly so that the distancetraveled by the pawl is less than the pitch of oneof' the teeth oftheratchet wheel 51'. Vhen a sufficient number of blanks have beenremoved from the front of the stack,'however, the weights 54, 54 willimpart adownward turningfmoveinent to the arm 48 `:that issuiiicient Forthis purpose the guide rails 6l, 61,"xare I toengage the pawl'50 withone of the teeth of the 'ratchet wheel 51 and impart a partial rotationtothe same, thus causing the upper reaches of the chains 56, 56, theweight 66, and the stack of blanks 59, tomove forwardly until properpressure of the stack against the stops 67, 67 is obtained. The stops 6767, as before stated, are yieldably mounted to provide for removal ofthe blanks in succession from the front of the stack. For this purpose,said stops 'are' preferably secured at 68, 68, to collars 69, 69 thatare fixed on shafts 70, 70, journa'led in arms 71, 71 that project fromside rails 61.-, 61 and are bolted or otherwise suitably fastenedthereto. Fixed on the shafts 70, 70 are arms 73, 73'to the free ends ofwhich are connected springs 74, 74

'that are also connected -at 75, 75 with the brackets 72, 72. Thesprings 74, 74 main-` tain the inner ends of the stops 67, 67 in enytogether with the stops 67, 67 yield so that Vthe inner ends of saidstops ,are moved outwardly` beyond the 'edges of the collapsedv blank"through the displacement of the blank by said knife. As soon as a blankis removed f7 I from the front of the stack, the stops 67, 6

are swung `inwardly by the springs 74, 74 and engaged over blank.'

BZftn: engaging knife/md recollapsing 'rollers,F2'gs`.1 0,6 inclusiveThe foremost blanks of the stack 59 rest on the p/late 60 as beforestated, said plate being carried by an inverted U-shaped bracket 59(Fig. 2a) secured to the slide frames 34` and 35 of the machine. y.Thecollapsed blanks are fed in succession off the front of the stack by aknife 76 which in each cycle of its operation moves rearwardly sothattheupperbeveled end 77 of said knife is engaged with the'rear side flap78 of a col-lapsed blank 79 (Fig. 4). One of the narrow end flaps 80, 80of the blank 79' is cut shorter than the other, to facilitate'engagement ofthe knife with the flap 7 8, and

the edges of the succeedingl y lila llO

the collapsed blank 79 and then.forwardly with a rotating motion on itslongitudinal axis to separatethe blank from the'front of the stackanddisengage saidv blank from lthe,

lstops 67, 67. l During forward travel of vthe blank 79 with the knife76, the edges 81, 81`

-of the blank engage curved en'd'porti'on's 82 and 83 of the guideVrails 61 and 61 respectively (Figs. 2a and 3). `The curved end por#tions 82 and'83 of said vgaliderails engage theedges 81, 81 of the blank79 as it travels is opened out, the edge of the forwardly moving knife76 is engaged in the corner of the blank at the fold line 84 thereof.Furthei` forward movement of the blank with the knife and engagement ofthe blank with the curved portion 82 of the guide rail 61 swings theopened blank around to the position B. The edge of the blank at the foldline 84 thus becomes the leading edge and is drawn by the knife 76through a pair of rollers 85, 85 as indicated at the position C of theblank. The rollers 85, 85 recollapse the blank 79 and tend to take thespring out of the same, by bending the rear and side panels of the blankin directions opposite to the directions in which said panels were bentwhen the blank was first collapsed.

The forwardly moving knife 76 while drawing the blank through therollers 85, 85 travels between-a straight guide rail 86 and a plate orsupport 87. The forward end of the plate 87 is supported on a bracket 87F ig. 3) secured to the side frames 34, 35, and the guide rail 86 issupported by brackets (not shown) secured to said plate After the rearedge of the recollapsed blank has cleared he rollers 85, 85, said blank,due to the inherent spring thereof, reopens and swings about the knifeto the position D. In this position of the blank it is engaged by apusher 88 which, together with the knife 76, moves the reopened blankforwardly on the plate 87 in engagement with guide rail 86 and with aguide rail 89 carried by brackets (not shown) boltedor otherwisesuitably secured on said plate. The guide rail 89 has a curved endportion 90 with which the reopened blank 79 is engaged at the position Dthereof. It will thus appear that when the pusher 88 starts to move thereopened blank forwardly, said blank through its engagement with thestraight guide rail 86 and the curved portion 90 of the guide rail 89will be turned around the knife 76 to the position E where the blankisregistered against stops 144, 144. VJ hen the blank reaches theposition E, the knife is withdrawn from the blank and is thereafterturned into position for re-insertion into the next succeeding.,r blank,the knife 76 then being moved rearwardly of the feeder into engagementwith the next collapsed blank of the stack 59.

The above described movements of the knife 76 are preferably impartedthereto through the medium of the following instrumentalities. Theraising and lowering movements of the knife are derived from a cam 91fixed on the cam shaft 41 and provided with a l.f .groove 92 in which isengaged a roller 93 journaled on an arm 94 that eX- tends transverselyof the framework of the feeder (Fig. 2). The arm 94 is loosely mountedon a rock shaft 95 that is ournaled in suitable bearings 96, 96 carriedby the side of frame at the bottom thereof. Pivotally connected with thearm 94 is one end of a connecting rod 97 the opposite end of which ispivotally connected with an arm 98 fixed on a shaft 99 that extendstransversely of the feeder and is journaled in suitable bearings on theside frames 34 and 35 thereof (Fig. 5). FiXed on the shaft 99 is an arm100 the free end of which is pivotally connected at 101 with the upperend of a link 102. The lower end of the link 102 is pivotally connectedat 103 with a bar 104 which, through the above described connections, isreciprocated vertically in a guide block 105 formed integrally with acrosshead 106 that is reciprocated horizontally by means to be presentlydescribed. The guide block 105 is provided with a groove 107 thatreceives the vertically reciprocating rod 104, said rod being` retainedin the groove 107 by guide plates 108, 108 that engage over the rod 104and are removably secured to the front face of the guide block 105, asby machine screws 109, 109.

The upper end of the rod 104 terminates in a stud 110 that forms abearing for a knife holder 111. The knife holder 111 is rotatablymounted on the stud 110 and is retained against displacement therefromby a pin 112 that extends outwardly from the stud 110 at right anglesthereto and engages in an elongated slot 113 in the holder 111. The slot113 coacts with the pin 112 to retain the knife holder 111 on the stud110 and at the same time provides for rotation of said holder and theknife during reciprocating movement thereof with the rod 104. Mount-edin ears 114, 114 that project from the knife holder 111, is ahorizontally extending pin 115 on which is journaled a sleeve 116 havingsecured thereto or formed integrally therewith an L-'shaped bracketcomprised by arms 117 and 118. The knife 76 is secured to the arm 117'of said. bracket as by machine screws 119, 119 that pass through alinedopenings in the lower end of the knife and in the arm 117 respectively.

The movement of the knife forwardly and rearwardly of the feeder isderived from a cam 120 that is fixed on the cam shaft 41 forwardly 0fthe cam 91 thereon. This cam 120 is provided with a groove 121 in whichis engaged a roller 122 that is ,rotatably mounted on an arm 123. Thearm 123 is loosely mounted on the rock shaft 95 and is pivotallyconnected with the lower end of a rod 124 the upper end of whichispivotally connected with an arm 125 of a bell crank lever 126 that isloosely mounted on the shaft 99. The other arm 127 of the bell cranklever 126 is pivotally connected at 128 with one extremity of a link 129the opposite eXtremity of which is pivotally connected at 130 with thecross head 106. The cross head 106, through the connections thereforwith the cam 120, is reciproeatcd horizontally in a moved rearwardly bythe crosshead 106 andy groove 131 of a guide bracket y132, the crosshead106 being retained in the groove 131 of the guide bracket 132 by plates133, 133 that are secured to the guide 132, as by machine screws 134,134. Projecting from the guide 132 and preferably formed integrallytherewitl` are brackets 135, 135 that are bolted or otherwise suitablysecured at 136, 136 to the feeder frame 35 as clearly shown in Fig. 1 ofthe drawings.

The knife 7 6, as before stated, is partially rotated during the forwardmovement thereof and this partial rotation of the knife is preferablyobtained through the medium of the following instrumentalities.Projecting horizontally from the holder 111, and preferably formedintegrally therewith, is an arm 137 on the free end of which isjournaled a roller 138. After the knife 76 has been moved upwardly intothe blank 79 and starts to travel forwardly, the roller 138 strikes acam'139, thereby turning the arm 137 rearwardly and turning the knife 76so that its edge is engaged with the fold line 84 of the blank at theinner side thereof. The cam 139, as clearly shown in Fig. 3 is ofsuflicient length to hold the arm 137 in its rearward position until theknife 76 and the pusher 88 have moved the reopened carton blank totheposition E thereof in Fig. 4 of the drawings. At this point, the cam 93and the connections therefor with the rod 104, move the latter and theknife downwardly so that the roller 138 is disengaged from the cam 139.Vhen the roller 138 is disengaged from the cam 139, a spring 140 havingits ends connected with the stud 110 and the knife holder 111, rotatesthe knife holder, the arm 137 and thc knife 76, in the oppositedirection to that in which said elements were rotated by the cam. f

After the second rotation of the knife it is the connections thereforwith the cam 120. Near the limit of its rearward movement, the knifeengages the rear side flap 78 of the next carton on the front of thestack 59. In order to relieve the strain of engagement ofthe movingknife with the carton and to provide for variations in position of thefront of the stack, a spring 141 is interposed between the bracket arm118 and the top ofthe holder 111 so that when the knife 76 strikes thecarton blank, said knife will yield slightly with a turningmovementabout the pivot 115, thereby compressing the spring 141. .Vhenthe knife has been moved upwardly into' the carton and starts forwardlywith the same, the tension on the sprin g 141 is relieved and theknife'turns slightly in the opposite direction aboutthe pivot 115, thisturning movement of the knife being limited and adjusted by a set-screw142 having threaded engagement in an opening forward in a bracket 143that overhangs the bracket army 118 and is securedfto or formedintegrally with the knife holder 111. From the foregoing it will appearthat the knife 76 travels Blank pushing and registering means, Figs. 17g 37 4' The blankpusher 88 above referred to, in the position of theopened blank indicated at D in Fig. 4,l engages the rear of the blankand with the knife 76, moves said blank forwardly to the position Ewhere the blank is registered against yieldable stop members 144, 144that are fixed on shafts 145, 145 and proJect inwardly of the guiderails 86 and 89 so as to be normally positioned in the path of travel ofthe moving reopened carton blanks. The shafts 145, 145 are journaled inbearing brackets 146, 146 that are bolted or otherwise suitably securedto the guide rails 86 and 89. F iXed on the shafts 145, 145 are arms147, 147 to the free ends of which -are connected springs148, 148 thatprovide for yielding movement of the stops 144, 144 out of the path oftravel of the carton blank when 1t is pushed forwardly of said stops bythe pusher 88. The springs 148 are connected, as, by hooks or screw eyes149, 149, with stationary parts of the machine, and said springs, afterthe carton blank has passed the stops 144, 144, swing said stops intothe full line positions thereof shown in Fig. 3 of the drawings.

The support for and motion of, the pusher 88, are preferably derivedfrom the following instrumentalities. l Fixed on the cam shaft 41is acam 150 provided with a groove 151 in which is engaged a roller 152. Theroller 152 is carried by an arm 153 loosely mounted on the rock shaft95. Pivotally connected with the arm 153 is one end of a connecting rod154 the opposite end of which is bent and pivotally connected with onearm 155 of a bell crank 156. The bell crank 156 is fixed on a stub shaft157 that is journaled in a suitable bearing on the side frame 34 of thefeeder. The other arm 158 of the bell crank 156 is pivotally connectedwithv one extremity of aAlink 159 the opposite eXtremity of which ispivotally connected with a. plate' 160 that carries L-shaped armscomprising the pusher 88. On one side ofthe plate 160 is alug 161 thatcarries on the end thereof a crosshead 162 that slides in a horizontallyextending groove 163 of a guide 164.-

The crosshead 162 is retained in the groove 163 by plates 165, 165 thatengage over the crosshead and are bolted or otherwise suitably securedto the guide 164 adjacent the edges of the groove 163 therein. Extendingoutwardly from the guide 164 is a lug 166 that is secured to the forwardleg of the bracket 72. The crfvf-ihead 162, through the connectionstherefor with the cam 150, causes the pusher 88 to move the o enedcarton from the position D thereof ig. 4) forwardly against the stops144 that register the carton at the position E, the carton then beingmoved forwardly by the pusher into the position F where the carton isreceived by mechanism that squares the carton out and moves it intoposition to be transferred onto one of the moving forms 33, 33 of thepackage making machine. The pusher 88 after moving the carton into saidsquaring out mechanism is returned to the full line position shown inFigs. 3 and 4 of the drawings, and is ready to push the next reopenedcarton forwardly as above described.

Sguwng out mechanism, Figs. 1, 2, 3, 4

f and 12 The carton squaring out mechanism is preferably comprised by apocketed receiver 167 through an open side of which the reopened andregistered carton blanks are pushed into said receiver by the pusher 88.This receiver, which is open at the bottom to provide for removal of thecartons therefrom, is mounted on the front of the blank feeder above thepackage making machine and in the same vertical plane with thecontinuously moving carton forms or blocks 33, 33 thereof. Said receiveris provided with fingers 168, which, in one position of the receiver areopened to permit movement of the carton into the pocket thereof, thefingers 168 being thereafter closed to square out the carton in thepocket of the receiver. The receiver 167 is reciprocated above andparallel with the continuously moving forms or blocks 33, 33 of thepackage making machine, and the motion of said receiver is so timedrelative to that of the forms or blocks 33, 33 that, in one cycle ofoperation of the receiver, it moves in one direction from the point oftransfer of the carton into the receiver, to a point where the carton isdelivered onto one of the continuously moving forms or blocks 33, 33,whereupon the receiver is moved in the opposite direction to the firstnamed point where the next reopened carton is pushed into the receiverto be moved therewith and transferred onto the next carton form or blockof the package making machine. These operations are carried out in asubstantially continuous manner, and preferably through the medium ofthe following instrumentalities.

Fixed on the cam shaft 41 is a cam 169 provided with a groove 170 inwhich is engaged a roller 171. The roller 171 is journaled on an arm 172intermediate the ends thereof, said arm being loosely mounted on therock shaft 95, (Fig. 12). The roller 171 and the arm 172 are associatedand mounted in substantially the same manner as the arms 94, 123, 153and the rollers 93, 122 and 152 carried thereby respectively and formingpart of the driving connections for operating the knife 76 and thepusher 88. Pivotally connected with the free end of the arm 172 is oneextremity of a connecting rod 173, the opposite extremity of which i'spivotally connected with the free end of an arm 174 that is fixed on arock shaft 175. This rock shaft 175 is journaled in suitable bearings onthe bracket 72 and fixed on said rock shaft is an arm 176 to the freeend of which is pivotally connected one extremity of a link 177. Theopposite extremity of the link 177 is pivotally connected with acrosshead 17 8 that, through the connections therefor with the cam 169,is reciprocated in a horizontally extending groove 179 of a guide 180.The crosshead 178 is retained in the groove 179 by plates 181, 181 whichengage over the crosshead and are bolted or otherwise pivotally securedto the guide 180 adjacent the edges of the grooves 17 9 therein.

The guide 180 is secured to or formed integrally with a saddle 181 (Fig.2) that is bolted or fastened in any other desired manner on a tiemember 182 that is connected with the upper ends of the brackets 72 and72". This tie member 182 is clearly shown in Fig. 2'` of the drawings,and has adjustably mounted thereon brackets 183, 183 in which the upperends of the blank recollapsing rollers 85, 85 are journaled. The lowerends of the rollers 85, 85 are journaled on plates 184 and 185 that areadjustably mounted on brackets 186 and 187 respectively,bo1ted orotherwise suitably fastened on the side frames 34 and 35 of the feeder.The bracket 186, as clearly shown in Fig. 2, is provided with anextension 188 that supports and has secured thereto the rear end of thecarton supporting plate 87.

Projecting forwardly from the crosshead v178 and preferably formedintegrally therewith are upper and lower horizontally extending plates189 and 190 respectively that are joined together by a web 191. Thereceiver 167 is bolted or otherwise suitably secured to the plate 190 onthe under side thereof as clearly shown in Fig. 12 of the drawings, andsaid receiver is provided at opposite sides thereof with ears 192, 192in which are j ournaled rock shafts 193, 193 that carry the swingingfingers 168, 168. The ngers 168, 168 are curved outwardly around opposedsides of the receiver 167 and then inwardly so as to be moved back andforth across the open rear side of the receiver. The free ends of thefingers 168, 168 carry right angle brackets 194, 194 which, togetherwith the inner sides of the receiver and right angle brackets 195, 195secured in the corners thereof (Fig. 3), serve to square out the cartonwhen it is pushed into the receiver and engaged by the fingers 168, 168.

At the point in the path of travel of the receiver where a carton ismoved therein by the pusher 88, the fingers 168, 168 are opened by amechanism that is preferably constructed as follows. Fixed on the camshaft 41 is a cam 196 provided with a groove 197 in which is engaged aroller 198. This roller 198 is journaled on a fork 199 that straddlesthe cam shaft 41 and is connect-ed with the lower end of a connectingrod 200. The upper end of the connecting rod 200 is pivot-- allyconnected with an arm 201 that is fixed on a rock shaft 202 journaled insuitable bearings on the side frame 34 of the feeder. Fixed on the rockshaft 202 is an arm 203 to the free end of which is pivotally connectedone extremity of a link 204. The connection for the link 204 with thearm 203 is preferably comprised by a toggle one part 205 of which has ahorizontal pivotal connection 206 with the free end of the arm 203. Theother part 207 of said toggle is threaded on the rod 204 and has avertical pivotal connection 208 with the toggle part 205. The end of therod 204 opposite that comprised by the toggle 205, 207 is pivotallyconnected with one arm 209 of a horizontally arranged bell crank 210.The bell crank 210 is fixed on a vertical stub shaft 211 that isjournaled in a suitable bearing carried by the side frame 34 of thefeeder. The other arm 212 of the bell crank 210 is pivotally connectedwith one extremity of a link 213 the opposite extremity of which ispivotally connected with the free end of an arm 214 that is xed on avertical stub shaft 215 journaled in a suitable i bearing carried by theside frame 35 of the (III) feeder.

The link 213 extends transversely across the front of the feeder andthrough the connections operated bythe cam 196 is moved rearwardly andforwardly of the feeder and continuously maintained substantially atright angles to the side frames of said feeder. As the blank receiver167 moves to `the full line position shown in Fig. 3 of the drawings,the link 213 is moved rearwardly of the feeder into engagement with therollers 216, 216 that are journaled on the free ends of arms 217, 217fixed on the rock shafts 193, 193. Rearward movement of the link 213 andengagement of the same withfhe rollers 216, 216 turns the shafts 193,193 so .that the fingers 168, 168 are opened to provide for movement ofthe carton into the pocket of the receiver 167.

` After the carton has been pushed into the receiver, the link 213through the connections therefor with the cam 196, moves forwardly ofthe receiver out of engagement with the rollers 216, 216. The fingers168, 168 are then closed on the carton in the receiver, the closingmovement of said fingers being effected b y springs 218, 218 theopposite ends of which are secured to the arms 217, 217, and to arms219, 219 that project from and are secured to opposite sides of thereceiver 167.

Flap spreading and carton stripping devices, Fgs.1,2,.4, and 7 to 1.2inclusive The continuously moving carton receiver 167 is provided withfiap spreading fingers 220, 220 and with a carton stripper 221. Thesedevices are so arranged and operated that whenthe receiver 167 ywith asquared out carton thereinis moved adjacentthe position Gr (Fig. 4)where the carton is transferred onto the one of the moving carton formsor blocks 33, 33, the fingers 220, 220 which have been moved downwardlyin the carton, act to spread the bottom flaps thereof to ensure that thecarton will be engaged over the moving form. The transfer of the cartonfrom the receiver 167 onto the moving form, is effected by the cartonstripper 221 which engages the top of the carton and pushes the same outof the receiver through the open bottom thereof and onto the movingform. When the carton has been pushed onto thel form by the stripper221, the latter is moved upwardly through the receiver to an inoperativeposition, the flap spreading fingers 220, 220 ,in the meantime havingbeen retracted and also moved upwardly through the receiver which thenreturns to the full line position shown in Fig. 3 of the drawings toreceive the next reopened carton that is forwarded by the pusher 88 Atosaid receiver.

The above described operations of the fiap spreader are preferablyobtained through the medium of the following instrumentali-.-

ties. Fixed on the cam shaft 41 is a cam 222 in the groove 222a of whichis engaged a roller 222b journaled on the free end of an arm 222c thatis fixed on the rock shaft 95. Fixed on the rock shaft 95 is an arm 222dto the free end of which is pivotally connected the lower extremity of aconnecting rod 223. The upper extremity of the rod 223 is pivotallyconnected with' the free end ofy with a pinion 229 mounted between thebracket arms 226, 226 on a shaft 230 that is journaled in suitablebearings on said arms. Fixed on the shaft 230 between the bracket arms226, 226 is a spur gear 231 that meshes with a rack 232 secured on orformed integrally with a vertically reciprocating bar 233 that is guidedin a suitable opening 234 extending vertically through the web 191 ofthe crosshead 17 8. Carried on the lower end of the bar 233, as by a pinor bolt 235, is a block 236 (Fig. 7) which is preferably of rectangularshape in cross section and provided with slots 237 and 238 in theopposed sides thereof respectively. The flap spreading lingers 220,220are pivoted in the upper ends of the slots 237, 238, on pins 239 and 240respectively that extend at right angles to each other through the wallsof the block 236. The block is provided intermediate the ends thereof,with a bore 241 in which is arranged to slide a plunger 242, there beinga spring 243 interposed between the up\ .per extremities of said plungerand the bore 241 respectively. The plunger 242 is provided with slots244 and 244 cut therein at right angles to each other respectively andinto which portions of the iap spreading fingers 220, 220 extend in boththe operative and inoperative positions of said fingers.

The plunger 242 is provided with projections 245, 245 adapted to engagethe top portions of the continuously moving carton forms or blocks 33,33. When thel bar 233 is moved downwardly, engagement of the plunger 242with one of the continuously moving carton forms or holders is effected,downward movement of the plunger is prevented, and a shoulder 246 onsaid plunger, through the downward movement of the bar 233, exerts acamming action on the fingers 220, 220 so that said fingers are movedoutwardly through the slots 237 and 238 of the block 236, intoengagement with the lower end iaps of the carton 79 and thus spread saidflaps prior to transfer of the carton onto the moving carton form orholder. When the plunger 242 is disengaged from the carton form, throughupward movement of the bar 233, the spring 243 moves the plungerdownwardly in the bore 241, a camming shoulder 247 on said plunger thenengaging the upper ends ofthe fingers 220, 220 and thereby retractingthe lower ends of said fingers into the block 236 through the slots 237and 238. The stripper 221 that engages the top of the carton and pushesit out of the receiver 167 onto one of the moving carton forms or blocks33, 33, is preferably operated through the medium of the followinginstrumentalities. Fixed on the guide 180 for the crosshea ds 178, is astationary cam block 248 provided in the front face thereof with a camgroove 249. Engaged in the cam groove 249 is a roller 250 (Figs. 1 and2) that is journaled on the lower end of an arm 251 fixed on a rockshaft 252. This rock shaft 252 is j ournaled insuitable bearings in theupper ends of the arms 253, 253 of a bracket 254 that/is bolted orotherwise suitably fastened on the plate 189 of the crosshead 178. Fixedon the rock shaft 252 isa segmental gear 255 that meshes with a spurgear 256 keyed or otherwise rigidly secured on a shaft 257 journaled insuitable bearings on the bracket arms 253, 253. Fixed on the shaft 257is a spur gear 256 that meshes with a rack 257 secured to or formedintegrally with a bar 258 which is guided in the opening 234 of the web191. Secured to the lower end of the bar 258, as by bolts or rivets 259,259 is a plate 260 the lower end of which forms the stripper 221.

From the foregoing it will appear that after the receiver 167 movesforwardly of the package making machine a certain distance, the roller250 travels upwardly in the cam groove 249, thus swinging the arm 251 sothat the segmental gear 255 and the spur gear 256 are operated to movethe bar 258 and the stripper 221 downwardly. In the downward movement ofthe stripper, it engages the top of the carton in the receiver 167. Atthe time the receiver 167 begins to move forward, the bar 233, throughthe connections therefor witlrthe rock shaft 95, moves downwardly in thecarton, and the fingers 220, 220 are operated, through engagement of theplunger 242 with the moving carton form, to spread the lower end flapsof the carton. While the flap spreaders are holding the flaps open andthe receiver is moving forwardly, the stripper 221 is moved by thedescribed driving connections therefor with the reciprocating receiver167, downwardly into engagement with the top of the carton. As thestripper 221 continues to move downwardly and while the Hap spreadingfingers are holding the lower end iaps of the cartons open, saidstripper begins to move the carton out of the receiver 167 through theopen bottom thereof and onto the moving carton form. At this time theflap spreaders are moved upwardly with the bar 233 and retracted in theholder 236. As soon as the stripper 221 has pushed the carton onto themoving carton form, the receiver 167 begins to move rearwardly of thepackage making machine, whereupon the stripper is movedupwardly t-itsinoperative position and is ready to act on the next carton that ispushed into the receiver at its cooperative position with the pusher 88.It will thusi appear that the flap spreader and the stripper movesuccessively in one direction through the receiver 167 during forwardmovement thereof relative to the package making machine, and that saidflap spreader and the stripper move successively in the oppositedirection through the receiver during movement thereof rearwardly of thepackage making machine.

Theflap spreadingfingersandtheassociated operating devices therefore,instead of being mounted on the receiver 167, may be mounted on theconveyor of the package making machine in which case each of thecontinuously moving carton forms or blocks 33, 33 of said conveyor isequipped with flap spreading devices and operating means therefor. Aconstruction of this character is disclosed in Figs. 13 to 15 inclusivewherein each continuously moving carton form or block is provided in theupper part thereof with slots 261 and 262 that are cut in the top of theform at right angles to each other and intermediate the extremities ofthe sides of said form. Extending transversely through the slots 261 and262 are pins 263 and 264 that are fitted in suitable openings throughthe walls of the. carton form or block. Mounted on said pins are flapspreading fingers 265 and 266, the operative positions of which areindicated in full lines in Figs. 13 and 14 of the drawings. The flapspreading fingers 265 and 266 are provided with weighted cams 267 and268 that tend to .-.wing the fingers into inoperative positions withinthe slots 261 and 262. Journaled in suitable bearings in the upper andlower ends of the carton form or block, and movable vertically in saidbearings, is a rock shaft 269 on the upper end of which is fixed anannular cup-shaped plate 270 which, when said rock shaft is movedupwardly, engages the. cams 267 and 268 and swings the flap spreadingfingers out of their' receiving slots to the operative positions thereofabove referred to where said fingers engage the end flaps of a cartonand spread said flaps prior to .delivery 0f the carton onto the movingcarton. form or block.

Fixed on the lower end of the rock shaft 269 is an arm 271 on the freeend of which is carried a roller/272 that is engaged by a suitable camnot shown) mounted on the machine adiacent the line of travel of theblock 33 and at the position where the carton is transferred onto themoving cartonform or block. l-Vhen the roller 272 engages said cam, theshaft 269 is rocked and at the same time moved upward- Ev by a cam 273which, during rotation of the od 269, rides up on a pin 274 or the likethat is carried by the carton form. Upward movement of the shaft269causes the plate 270 to engage the cams of the fingers 265 and 266,thereby swinging said fingers out of their re- -eiving slots intoengagement with the end V roller-27 2 with said second cam turns therock shaft 269 in a direction opposite to that of its that the camswhich engage the roller 272 A are of sufficient height to accommodateraising and lowering movements of the arm 271 and the rock shaft 269during their above described turning movements.

Instead of equipping the carton forms or blocks with mechanical flapspreading devices, pneumatic fiap spreading means may be employed. Inthis case each of the continuously moving carton forms or blocks 33, 33is preferably provided in the top thereof with angularly extending airducts 275 and 276 (Fig. 16) through which air, delivered from anysuitable source into the hollow carton form or block, is blown to spreadthe end flaps of the cartonas it is being transferred onto thecontinuously moving form or block. The air is supplied to the interiorof the carton form or block in a manner well understood in the art andneeding no detailed explanation in so far as respects the presentdisclosure.

Operation,

It is believed that the operation of the machine will be readilyunderstood from the above description of the various instrumentalitiescomprising the same. A stack of col- 85, which recollapse the carton andbend the side panels thereof in directions opposite to those in whichsaid panels were bent when the carton was first collapsed.. As the knifemoves forwardly of the rollers 85, 85 it starts to move downwardly andat the limit of the forward movement of the knife it is drawn out of thecarton, turned in the direction oppoSite to that of its first turningmovement,

and moved rearwardly to engage the next carton on the front of the stack59. At the point where the first `carton is left on the. plate 87 by theknife, said carton is pushed by the pusher 88 into the pocket of thereciprocating receiver 167, the fingers 168 168 at this time beingrocked out of the way as the carton enters the receiver. Said fingersare then rocked in the opposite direction into engagement with thecarton thereby squaring the same out in the receiver.

After the carton has been delivered into the receiver, ysaid receiver,together with the flap spreader and the stripper, moves forwardly invertical alinement with and at the same rate of speed'as one of thecontinuously moving forms or blocks 33, 33. At the time the receiver 167starts forward, the flap spreader is driven downwardly through thecarton to a point where the fingers 220, 220 are ex-y tended to spreadthe. lower end flaps of the carton. While the flap spreading fingers areholding the flaps open, the stripper starts the carton out of thereceiver through the open bottom thereof and onto the continuouslymoving carton form or block. As soon as the stripper has moved thecarton downwardly so that the flaps are engaged over the form or block,the flap spreader is moved upwardly in the receiver toward theinoperative position of said iap spreader. When the stripper 221 hascompleted the/movement of the carton onto the continuously'moving cartonform or block, the receiver 167 starts rearwardly and through thedriving connections therefor with said stripper moves the latterupwardly to its inoperative position. In the meantime the flap spreaderhas been returned to its uppermost position by the connections thereforwith the rock shaft 95, and when the receiver reaches its cooperativeposition relative to the pusher 88, all of the parts on said receiverare ready to act on the next carton forwarded into the receiver by saidpusher. It will of course be understood thatthe above describedoperations are repeated and carried out in a substantially continuousmanner and that the capacity ofproduction of the apparatus is thusmaterially increased.

The invention, as before stated, may be embodied in single or tandemform with various types o. package making machines that operate atvarious speeds and have any desired capacity of production. It istherefore to be expressly understood that while one embodiment of theinvention has been herein illustrated and described with more or lessdetail, the invention is not limited to such embodiment or otherwisethan by the terms of the appended claims.

What is claimed is:

1. In apparatus of the character described, a carton holder continuouslymoving in one plane only, a carton receiver arranged to move intocooperative relation with said carton holder, and means for positivelymoving the carton out of the receiver onto said continuously movingcarton holder.

2. In apparatus of the character described, a carton form or blockcontinuously moving in one plane only, a carton holding receiver havingits movement synchronized with said form or block at a point oftransfer, means for operating said receiver, and means for positivelymoving a carton out of the receiver onto the continuously moving cartonform or block at said point.

`3. In apparatus of the character described, a movable carton support, acarton holding receiver arranged-to move into cooperative relation withsaid carton support, and a stripper for moving a carton from thereceiver onto the carton support during movement of said support andsaid receiver.

4. In apparatus of the character described, a movable carton support, acarton holding receiver arranged to move into cooperative relation withsaid carton support, means for transferring a carton from said receiveronto said carton support, and a flap spreader for spreading flaps on thecarton prior to transfer of the latter onto said carton support andduring movement of the carton support and the receiver.

5. In apparatus of the character described, a movable carton support, acarton holding receiver arranged to move into cooperative relation withsaid support, means for squaring out a carton on said receiver, andmeans for positively moving the squared out carton out of the receiveronto the movable carton support during movement of the latter and thereceiver.

6. In apparatus of the character described, a receiver movable inopposite directions, a continuously moving carton support arranged totravel past the receiver, means for delivering a carton to saidreceiver, operating means for the receiver adapted to alternately moveit into cooperative relation with Said delivering means and the cartonsupport. and means for positively moving the carton out of the receiveronto the movable cartn support during movement of the latter and saidreceiver.

7. In apparatus of the character described,y

means for supporting a stack of collapsed cartons, means adapted toseparate a carton from the stack, open the carton and move it away fromthe stack, a movable receiver to which the open carton is delivered, acontinuously traveling carton support movable into cooperative relationwith said receiver, and means for positively moving the cartonrelatively to the receiver to transfer said carton onto said cartonsupport during movement of the latter and the receiver.

8. In an apparatus of the character described, means for supporting astack of collapsed cartons, a carton holding receiver, means throughwhich cartons are passed to recollapse the same, means adapted toseparate a carton from the stack, open thecarton, move it through saidrecollapsing means to a position where the carton is reopened anddeliver it to said receiver. a continuously moving carton support. andmeans for positively moving the reopened carton out of the receiver ontothe continuously moving carton support.

9. In an apparatus of the character described, means vfor supporting astack of collapsed cartons, a pair of rollers through which cartons .arepassed to recollapse the porting device, and means for transferring theopened and squared out carton from said mechanism onto said cartonsupport while said devlce and mechanism are in motion.

10. In apparatus of the character described, an endless conveyorprovided at intervals therealong with carton forms or the like, meansfor supporting a stock of collapsed cartons, a reciprocating cartonreceiver, means adapted to separate a carton from the stack, open thecarton and move it to a position from which the carton'is delivered tosaid receiver,and means for moving the carton relatively to the receiverto transfer said carton onto one of the forms of the conveyor.

11. In apparatus of the character described, a conveyor' provided atintervals therealong with a plurality of carton forms or the like, meansadapted 'to support a stack of collapsed cartons, a movablereceiver,means for separating the cartons successively from the stack adapted toopen the cartons, move the same,l and position the cartons for deliveryto said receiver, means for pushing the opened cartons to the receiver,and means for moving the cartons relatively to the re` ceiver totransfer said cartons onto the forms of said conveyor.

12. In apparatus of the character described, means for supporting astack of collapsed cartons, a rotatable knife movable rect-ilinearly inangularly related directions to separate a carton from the stack, openand move the carton away from the stack and repeat said operations onthe successive blanks Y of the stack, a conveyor provided at intervalsthereon vwith carton forms or the like, and means for moving'the openedcartons successively into position on the successive forms of saidconveyor.

13. In apparatus of the character described, means for supporting andfeeding a stack of collapsed cartons, a reclprocating knife movable in aclosed path, means for moving the knife in said closed path so that itengages lthe foremost collapsedI carton, moves upwardly therein, thenforwardly with a turning motion to separate thecarton from the-front ofthe stack, open said carton,

andcarry it forwardly to a positionwhere` the carton 1s reopened, amovable form or` the like, andvmeans for moving the .carton from saidposition onto said form. i .f v i 14, Inb-apparatusnof .the-.characterforwardlyof said means and through which the cartons are drawn to aposition where they are reopened, a -knife reciprocating vertically andhorizontally and adapted to engage the foremost carton of the stack,move upwardly in said carton, forwardly therewith through the rollers tosaid position, and then downwardly out of the cartons and rearwardlyinto engagement with the next carton on the front of the stack, anendless chain conveyor movable transversely of the path of movement ofsaid stack, a plurality of forms secured at intervals along saidconveyor, and means for moving the reopened cartons onto said movableforms.

15. In .apparatus of the character described, means for supporting andfeeding a stack of collapsed cartons, a rotatably mount- 'Iii ed knifereciprocating vertically and horizontally and adapted to engage theforemost carton of the stack, move upwardly in said carton, forwardlytherewith to a position where the carton is reopened, and thendownwardly out of the carton and rearwardly into engagement with thenext carton on the front of the stack, means for rotating the knife inone direction as it starts forwardly with the carton, means forthereafter rotating the knife in the opposite direction, a plurality ofmovable forms, and means for moving the reopened cartons onto saidmovable forms.

16. In apparatus of the character described, a knife mounted to rotateand travel in a'closed path, mechanism for moving the knife in itsclosed path, and means independent of said mechanism and adapted torotate the knife as it travels in said path. 17. In apparatus of thecharacter de scribed, a rotatably mounted knife arranged to travel in aclosed path, mechanism for moving said knife in its closed path, andmeans independent of said mechanism and adapted to rotate the knifefirst in one direction and then in the opposite direction as it travelsin said path. A

18. In apparatus of the character dcscribed, a blank support, a deviceto which blanks are fed from said support, a movable knife for feedingsaid blanks, mechanism for moving said knife rectilincarly in angularlyrelated directions along a closed path, and devices for rotating theknife as said knife travels in said path.

19. In ,apparatus of the character de-` scribed, a device tobefed,.means for feeding' blanks l thereto l comprising a rectilinearlyref ciprocating cross-head anda knife arranged to reciprocate-rectilinearly onsaidcross-head transversely f of its i pathk of,travel` mea ns- `for 1 reciprocating said knife, and means forzturnf,

. ingthe knife.during thercciprocating,movedescribed, meansl for.supporting and feeding. a,l y stack of collapsed cartons horizontally,a pairy of normally tixedverticalrollers.arranged mentofthe,cross-headgand,the;knife., yy:

. 20. Inapparatus. ofvrthe character.y

zontally movable cross head on which the ing movement of the knife aboutits pivotal knife is arranged to rotate and travel vertically, means forreciprocating said cross head horizontally, means for reciprocating .heknife vertically on the cross head, and means for rotating the knifeduring reciprocating movements of the cross head and said knife.

2l. In apparatus of the character de- -cribed, a device to be fed, meansfor feeding blanks thereto comprising a rotatably mounted knife, meansfor moving said knife rectilinearly in angularly related directionsalong a closed path, and means for rotating .he knife first in onedirection and then in the opposite direction during travel of the knifein said path.

22. In apparatus of the character described, a device to befed, meansfor feeding blanks thereto comprising a. rotatably mounted knife,mechanism for moving said knife rectilinearly in angularly relateddirections, cani-operated means for rotating said knife in onedirection, and a spring for :.otating the knife in the oppositedirection.

23. In combination, a rectilinearly reciprocating crosshead, a knifesupport arranged en said crosshead for rectilinear reciprocatng movementtransversely of its path of .ravel, a knife cam-operated in onedirection and spring-operated in the other direction and rotatablymounted on said knife support,

means for reciprocating the crosshead, andmeans for reciprocating theknife support.

24. In combination, a rectilinearly reciprocating crosshead, a bar orthe like arranged for rectilinear reciprocating movement on thecrosshead transversely thereof, means for reiprocating the crosshead,means for reciprocating said bar, a knife holder rotatably mounted onthe bar and having an arm provided at the end thereof With a roller, aknife carried on said knife holder, a cam for engaging said roller toturn the knife in one direction, and a spring for turning said knife inthe opposite direction.

25. In combination, a. knife support, means for moving said supportrectilinearly in an- ",ularly related directions, a knife holderroatably mounted on said support, said knife holder being cam-operatedin one direction and spring-operated in the opposite direction, a knifepivoted on the knife holder on an axis extending substantially at rightangles to the longitudinal axis, of the knife, and means providing foryielding movement of the knife about its pivotal connection with saidknife holder.

26. In combination, afknife support, a ver- Lical trunnion thereommeansfor moving said support ina closed path, a knife holder journaled onsaid trunnion and movable with the support in said path, a knife pivotedon said 1older on an axis extending transversely of the trunnion, andmeans providing for yieldconnection with said holder.

2T. In apparatus of the character described, means to be fed, means forfeeding blanks thereto comprising a rotatably mounted knife, mechanismfor moving said knife in a closed path, and blank recollapsing means insaid path through which the knife with the blank thereon passes duringits travel in said path, and means independent of said mechanism andadapted to rotate the knife in reverse directions at opposite sides ofsaid blank recollapsing means respectively.

23. In apparatus of the character described, means to be fed, a movableknife for feeding blanks thereto, mechanism for moving said knife in aclosed path, and a pair of blank recollapsing rollers normally immovablerelative to each other and through which the knife with the blankthereon passes during travel of said knife in said path.

29. In apparatus of the character described, means `for supporting astack of carton blanks, a reciprocating pusher to which blanks are fedsuccessively from said supporting means, a rotatably mounted knife forfeeding said blanks, and independent mechanisms for rotating and movingsaid knife in a closed path respectively.

30. In apparatus of the character described, means for supporting astack of carton blanks, means to which blanks are fed successively fromsaid supporting means, a rotatably mounted knife for feeding said blanksand arranged to reciprocate rectilinearly in a plurality of angularlyrelated directions, mechanism for reciprocating the knife rectilinear-lyin each of said directions, a pair of rollers through which the knifeWith a blank thereon passes, and means for rotating the knife in reversedirections rearwardl) and forwardly of said rollers, respectively.

3l. In combination, a carton receiver, mechanism for reciprocating thesame horizontally, means for pushing cartons into said receiver, spacedhorizontally movable fingers pivoted on the receiver for squaring outthe carton therein, means for opening said fingers, and means forclosing the same.

32. In combination, a reciprocating receiver open at the bottom and oneside thereof, means for pushing a previously opened carton into thereceiver through its open side, devices pivoted on the receiver forsquaring out the carton therein, mechanism for opening the pivoteddevices When the carton is moved into the receiver, means for thereafterclosing said devices, and means traveling with and movable relatively tothe receiver for pushing the squared out carton out of the receiverthrough the open bottom thereof.

33. In combination, a reciprocating carriage, a carton receiver securedthereon, means on said receiver for squaring out a. car-

